Resin Bonded Micron Diamond Powder With Chemical Nickel Coated

OEM ODM Nickel Chemical Coated Diamond Powder High Hardness

Description:

Diamond is made of pure carbon. The hardness and optical properties of diamond are unique because of its compact, tightly bonded crystalline structure. The conditions needed to produce this structure were for many years believed to be very high temperature and pressure, similar to the growth environment for natural diamonds.

synthetic diamond, man-made diamond that is usually produced by subjecting graphite to very high temperatures and pressures. Synthetic diamond resembles natural diamond in most fundamental properties, retaining the extreme hardness, broad transparency (when pure), high thermal conductivity, and high electrical resistivity for which diamond is highly prized.

Optical Properties of Diamond:
- Brilliance diamond has extremely high reflectivity, its reflection critical angle is small, the range of total reflection is wide, light is prone to total reflection, and the amount of reflected light is large, thus producing high brightness.
- Scintillation: The flicker of diamond is flash, that is, the reflection and flash of white light on its surface when the diamond or the light source and the observer move relatively. Colorless, transparent, well-crystallized octahedron or curved poly-shaped diamond, even without cutting and grinding, it can show good flashing light.
- Dispersion or fire: Diamond's diverse crystal faces are like a prism, which can decompose the white light that enters the crystal through refraction, reflection and total reflection into the constituent colors of white light-red, orange, yellow, green, Blue, indigo, purple and other shades.
- Luster: The outstandingly hard, smooth and shiny crystal surface or cleavage surface of corundum has a particularly strong reflection effect on white light, and this very characteristic reflection effect is called diamond luster.

Available Sizes:

Feature:
Nickel – 30%,56% or 60% by weight, or any customized specification
Copper – 50% by weight or any customized specification
Used to enhance bond retention
Allows for better heat dissipation
Can be Customized based on customers' demand

Production process
Adopting advanced composite plating process, the product has dense coating and high grinding ability;
Increase the holding force between the abrasives and the bond between the abrasives and reduce the diamond particles from the substrate;
The heat dissipation capability is high, and the thermal shock is slowed down so that the diamond can be carbonized from the impact of the instantaneous high temperature;
In high temperature sintering and high temperature grinding, the coating plays a protective role on the diamond, preventing diamond carbonization, oxidation and so on;
Self sharpening, can maintain good grinding efficiency and service life.
It can improve the electrical conductivity and chemical properties of diamond.

Characteristic:
Bonding strength between diamond/CBN and binding agent increased, also grit's holding strength.
The coated layer can separate air, increase heat dissipation, reduce thermal damage to diamond/CBN.
It can blanket particle defects and uplift their strength.

Application Field:

- Nickel coated diamond abrasive is mainly used to manufacture resin bonded grinding tools including dry grinding and wet grinding. The diamond has good heat dissipation ability and control ability, and can adapt to high-speed cutting environment without oxidation.
- Titanium coated diamond abrasive is mainly used in the manufacture of ceramic bonded, metal bonded grinding tools and brazed diamond tools. The protection of titanium can improve the physical properties and oxidation resistance of synthetic diamond abrasive.
- Copper coated diamond abrasive is mainly used to manufacture resin bonded dry grinding wheels.

Coated Diamond Series:
Grade HID Ni Coated Diamond
Description: Coated diamond is divided into electrolytic and chemical plating, it includes Ni coating, Cu coating, Ti coating, Cr coating etc. Coated diamond effectively increase holding force between diamond and bonding, reduce thermal shock, protect diamond against oxidation and graphite, lengthen product lifetime.

Application: Electroplating Nickel products mainly used in resin bond products with dry and wet abrasives, effectively improve the holding force with good thermal stable ability, avoid carbonization in high speed cutting. Chemistry plating Nickel products mainly used in resin bond products with dry and wet abrasives, no external current conditions, and deposited metal on diamond surface by process of self-catalytic redox reactions, form the thickness and density of nickel-plated.

Grade HID Cu Coated Diamond
Description: Recommend for resin bond tools. Able to effectively enhance the tools life by improving the mechanical retention of diamonds and reducing heat damage.

Characteristics:
Effectively enhance the tools life by improving the mechanical retention of diamonds and reducing heat damage.

Grade HID Ti Coated Diamond

The coating greatly enhances the mechanical attachment of diamond to the bond matrix through the strong metallurgical adhesion between Ti and the matrix. It also protects diamond from oxidation or metal erosion which causes graphitization of the diamond, therefore, improves the application features of diamond tools.

Grade HID Si Coated Diamond
Silicon coating strengthens the retention between bond and diamond, improves the thermal stability, wear resistance and helps better conduct the heat. It also helps to avoid the corrosion from Fe, thus it protects the diamond, prolongs the tools' life and raises the sintering temperature.

Grade HID W Coated Diamond
W reacts with diamond particles and generates WC, which is with good thermal stability and wear resistance. The coating improves the bond retention and enhances the diamond toughness, its alloy coating layer improves the thermal conductivity, which can prolong tool life.

Grade HID Co Coated Diamond
Cobalt coating could improve the retention of diamond and bond. In addition, the sintering temperature could be raised because the coating can protect diamond from oxidation and corrosion. It also enhences the hardness and abrasive resistence of coated diamond.

Grade HID Cr Coated Diamond
Chromium enjoys nice wettability and affinity on diamond. It forms a layer of chromium-carbide between diamond and bond during coating and sintering, thus the coating improves the retention between diamond and bond. It also increases the hardness and abrasive resistance of coated diamond.

Particle Size Distribution Specification for Superabrasive Grains

Abrasive Materials Mesh Size Comparison List